oleg-lukasonokandClaude Fable 5
99f1fd07e3
Draw.io diagram generation and analysis skill: mandatory layout and style rules, XML reference, negative-space companion diagrams, and the drawio-tools TypeScript CLI with 12 analysis/validation actions. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
140 lines
4.4 KiB
Markdown
140 lines
4.4 KiB
Markdown
# drawio-main
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CLI tools for programmatic analysis and verification of `.drawio` files.
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Built with TypeScript using [`@maxgraph/core`](https://github.com/maxGraph/maxGraph) — the official TypeScript successor to mxGraph (the library draw.io is built on) — for accurate XML parsing and absolute coordinate resolution.
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## Stack
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| Concern | Choice |
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| Language | TypeScript (ESM, `NodeNext`) |
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| Package manager | pnpm |
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| XML / model parsing | `@maxgraph/core` v0.23 |
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| Node.js DOM polyfill | `jsdom` |
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| `<mxfile>` decoding | `pako` (base64 + deflate) |
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| Output | YAML (via `js-yaml`) |
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## Install
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```bash
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pnpm install
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```
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## Build
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```bash
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pnpm run build
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# compiled output → dist/
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```
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## Usage
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```bash
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node dist/cli/commands.js --file diagram.drawio --action <action> [--page <index>]
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# or via tsx (no build step)
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pnpm dev --file diagram.drawio --action <action>
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```
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Output is always YAML to stdout.
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## Actions
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### Inventory
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#### `summary`
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Parses **all pages (tabs)** in the `.drawio` file and returns a full inventory of shapes and edges per page. Delegates per-page data to the same logic as `page-summary`.
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**Output:** `pageCount`, `pages[]` (each page has the same structure as `page-summary`)
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---
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#### `page-summary`
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Parses a **single page**. Use `--page <index>` (0-based, default `0`).
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**Output:** `pageCount`, `pageIndex`, `pageName`, `page` (width/height), `summary` (shapeCount, edgeCount, contentRight, contentBottom), `shapes[]`, `edges[]`
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---
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#### `page-hierarchy`
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Reads `parentId` from each shape and builds a **recursive containment tree**:
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- Depth 0 — layers / top-level containers (direct children of the canvas)
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- Depth 1 — subsystems / groups inside a layer
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- Depth 2+ — leaf components and nested elements
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**Output:** `summary` (totalShapes, maxDepth, depthCounts), `tree[]` (recursive: id, label, depth, childCount, children[])
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---
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#### `page-connectors-summary`
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Returns a summary of all **connectors (edges)** on the page, classified by type and connectivity.
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Connector types: `directed` (both endpoints connected), `partial` (one missing), `floating` (both missing)
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**Output:** `summary` (total, directed, partial, floating, labelled, unlabelled, withWaypoints, straight), `connectors[]` (id, label, sourceId, sourceLabel, targetId, targetLabel, waypointCount, type)
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---
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### Validation
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#### `page-connectors-validation`
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Detects two categories of layout defects on the first page:
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1. **Connector-shape overlaps** — a connector segment passes through a shape it is not connected to
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2. **Connector crossings** — two connectors intersect at an interior point
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Uses 2 px tolerance. **Output:** `summary` (connectorShapeOverlaps, connectorCrossings, totalIssues), `issues[]`
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---
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#### `page-labels-validation`
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Validates shape labels and flags:
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1. **empty_label** — shape has no label (whitespace counts as empty)
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2. **duplicate_label** — two or more shapes share the same label
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3. **long_label** — label exceeds 80 characters
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Edges/connectors are excluded. **Output:** `config` (maxLabelLength), `summary` (emptyLabels, duplicateLabels, longLabels, totalIssues), `issues[]`
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---
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#### `page-shape-bbox-validation`
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Detects shapes whose **bounding boxes overlap** each other. Parent-child containment is intentional and is **not** flagged. Uses 2 px tolerance.
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**Output:** `summary` (totalShapes, overlappingPairs), `issues[]` (shapeAId, shapeALabel, shapeBId, shapeBLabel, overlapX, overlapY)
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---
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#### `page-orphans`
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Finds disconnected elements:
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1. **isolated_shape** — shape with no edges connected to it
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2. **dangling_connector** — edge missing its source and/or target shape
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**Output:** `summary` (isolatedShapes, danglingConnectors, totalIssues), `issues[]`
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---
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### Layout
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#### `page-recommendations`
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Computes the bounding box of all shapes and recommends the smallest standard landscape page size that fits with an 80 px margin (first page).
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Standard sizes: A4 (1169×827), A3 (1654×1169), A2 (2339×1654), A1 (3307×2339). Falls back to custom rounded size.
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**Output:** `currentPage` (width, height, orientation), `contentBbox`, `required` (min size needed), `recommendedPage` (name, width, height), `checks` (contentFitsCurrentPage, hasAdequateMargin, isLandscape)
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---
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## Supported file formats
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- Bare `<mxGraphModel>` XML files
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- `<mxfile><diagram>…</diagram></mxfile>` wrappers (draw.io desktop format, base64+deflate encoded, multi-page supported)
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